15 Walnut St
Central Islip, NY 11722
— ba 1,156 sqft Built 1950 Lot 7,405 sqft multi_family
No recorded sales
Location
Timeline: Sale, Listing & Tax History
Recorded events
No recorded events
No sale or listing events are on file for this property.
Tax assessment history
| Year | Building | Land | Total assessed | Tax paid |
|---|---|---|---|---|
| 2025 | $26,000 | $5,600 | $31,600 | $10,786 |
| 2024 | $26,000 | $5,600 | $31,600 | $10,345 |
| 2023 | $26,000 | $5,600 | $31,600 | $10,345 |
| 2022 | $26,000 | $5,600 | $31,600 | $10,242 |
| 2021 | $26,000 | $5,600 | $31,600 | $10,097 |
| 2020 | $22,500 | $5,600 | $28,100 | $8,772 |
| 2018 | $22,500 | $5,600 | $28,100 | $7,293 |
| 2017 | $22,500 | $5,600 | $28,100 | $7,143 |
| 2016 | $22,500 | $5,600 | $28,100 | $7,086 |
| 2015 | $22,500 | $5,600 | $28,100 | $7,061 |
| 2014 | $22,500 | $5,600 | $28,100 | $7,036 |
| 2013 | $22,500 | $5,600 | $28,100 | $6,970 |
| 2012 | $22,500 | $5,600 | $28,100 | $6,883 |
| 2011 | $22,500 | $5,600 | $28,100 | $6,639 |
| 2010 | $22,500 | $5,600 | $28,100 | $6,397 |
| 2008 | $22,500 | $5,600 | $28,100 | $5,908 |
| 2007 | $22,500 | $5,600 | $28,100 | $5,575 |
Property facts
Year built
1950
Property type
multi_family
Stories
—
Beds
—
Baths
—
Living area
1,156 sqft
Lot size
7,405 sqft
ZIP code
11722
City
Central Islip
Street
Walnut St
Coordinates
40.78613, -73.18901
Comparable properties nearby
Block-level micro-comps
Same street, ±3 house numbers, sold in the last 24 monthsFrequently asked questions
When did 15 Walnut St last sell?
No public-record sale is on file for 15 Walnut St.
What is the current tax assessment for 15 Walnut St?
The most recent total assessment for 15 Walnut St (year 2025) is $31,600 with $10,786 in property tax.
When was 15 Walnut St built?
15 Walnut St was built in 1950.
How does 15 Walnut St compare to others on Walnut St?
We track 8 other properties on Walnut St. Browse the list under "Other properties on Walnut St" to compare beds, baths, and sale history.
What are the property facts for 15 Walnut St?
15 Walnut St is a — bath, 1,156 sqft, 7,405 sqft lot multi_family.
Is 15 Walnut St a flip candidate?
No — 15 Walnut St does not appear in our flips dataset.
Is 15 Walnut St a tax-appeal candidate?
No — 15 Walnut St is not currently flagged as a tax-appeal candidate.
Forecast for this area
ZIP-area linear projection — not a per-property automated valuationQuarterly trend
-2.9%
Implied 1-yr
-11.7%
2026 Q1
$467.5K
2026 Q2
$450.6K
ZIP 11722 — Median Price History + Forecast
Explore nearby
Geography
Other properties on Walnut St